Search

从光网络地理分布模型出发,采用通用模型下的最坏圆形切割算法,对网络拓扑结构进行了建模和仿真,计算出了网络的最坏圆形切割集,进而算出了网络的节点风险概率,并根据节点风险概率对网络的脆弱性做出了评估,这些工作对提高光网络的抗毁能力具有一定的参考意义。

从光网络地理分布模型出发,采用通用模型下的最坏线形切割算法,对网络拓扑结构进行了建模和仿真,计算出了网络的最坏线形切割集,进而算出了网络的链路风险概率,并根据链路风险概率对网络的安全性做出了评估。这些工作对提高光网络的抗毁能力具有一定的参考意义。

本文介绍提高MCVD法光纤预制棒生产速度及扩展光纤带宽的方法。应用该方法可使光纤的生产速度从0.5km/h提高到1.1km/h;带宽大于1GHz·km的成品率从45%提高到91%。

Copyright of Chinese Journal of Applied Mechanics is the property of Chinese Journal of Applied Mechanics Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Medical Equipment Journal is the property of Chinese Medical Equipment Journal Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Clean Coal Technology is the property of Clean Coal Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Sichuan Mental Health is the property of Sichuan Mental Health Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shandong Medical Journal is the property of Shandong Medical Health Newspapers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This study aimed to understand the content changes of different protected soil organic carbon (SOC) fractions in upland red soil that have been affected by long-term fertilization management, and to explore the equilibrium or saturation for SOC pools with varying protection methods. Surface (0~20 cm) samples of upland red soil that were subjected to six different treatments were collected from a longterm fertilization experiment. Treatments included no fertilizer application (CK); chemical nitrogen fertilizer alone (N); conventional usage amount of chemical N, phosphorus (P), and potassium (K) fertilizers (NPK), double usage amount of chemical NPK fertilizers (HNPK), chemical NPK fertilizers plus organic manure (NPKM), and organic manure alone (M) . The total organic carbon (TOC) of soil was then separated into six different functional pools by the recently developed physical-chemical fractionation method, which included unprotected SOC, physically protected SOC, physical-chemically protected SOC, physical-biochemically protected SOC, chemically protected SOC, and biochemically protected SOC pools. The responses of the contents of SOC fractions with varying protection mechanisms to long-term fertilization were assessed, and the relationships between the contents of different protected SOC fractions and TOC, as well as between storages of different protected SOC pools and accumulated C input were investigated. The results showed that there was no significant (P> 0.05) difference in the contents of all the separated SOC fractions between CK and N treatments. The TOC content, the contents of unprotected SOC and physically protected SOC fractions in NPK, HNPK, M, and NPKM, however, were significantly increased by 13.3%– 48.0%, 39.2%-221.5%, 41.9%-132.3% respectively, compared with CK treatment. The proportions of unprotected SOC and physically protected SOC in TOC were significantly (P<0.05) increased under all the fertilization treatments with an exception of N treatment by 1.9- 10.0 and 2.5-5.5 percentage points respectively as compared with CK treatment. Organic amendment treatments (such as M and NPKM treatments) caused the best increase of the content of TOC and its unprotected and physically protected fractions. The contents of all the SOC fractions have shown linear positive correlations with the TOC content, according to the slope of the fitted equation. With the increase of TOC content per unit, the increase rates of the content for the unprotected coarse particle SOC and physically protected particle SOC were up to 44.3% and 28.0% (P<0.001), respectively. With the exception of biochemically protected SOC, the storages of the other separated SOC pools showed significant (P<0.01) linear correlations with the accumulated C input. Therefore, the increased TOC in upland red soil due to fertilization is preferentially sequestered in the form of unprotected coarse particle and physically protected SOC. Application of chemical fertilizer, through either single or combined application, has less effect on improving TOC sequestration, SOC lability, and its physical protection than organic amendments. The results of this study also indicated that the biochemically protected SOC pool in upland red soil reached an equilibrium status under the current condition of accumulated C input level; however, further work is needed to assess SOC saturation characteristics, which rely on lengthier experiments. [ABSTRACT FROM AUTHOR]

Copyright of Bulletin of Botanical Research is the property of Bulletin of Botanical Research Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Agricultural Resources & Environment / Nongye Ziyuan yu Huanjing Xuebao is the property of Journal of Agricultural Resources & Environment Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tianjin Medical Journal is the property of Tianjin Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Irrigation & Drainage is the property of Journal of Irrigation & Drainage Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shandong Medical Journal is the property of Shandong Medical Health Newspapers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Due to the high-speed requirement of high-end network devices, hardware using TCAMs has been the dominant implementation of packet classification in industry. Despite its capability for line-speed queries, TCAM is not only power hungry but also capacity inefficient. By making use of a pre-classifier to activate TCAM blocks selectively, many research efforts significantly reduce the power consumption of TCAM. However, these bottom-up based pre-classifiers achieve power savings at the expense of poor utilization of TCAM capacity, and the potential of power reduction is not fully exploited in many cases. This paper proposed a power-saving pre-classifier for TCAM based packet classification, which constructed based on decision trees. By grouping rules with respect to their small fields, rules could be recursively mapped into decision trees without the trouble of rule replications, so that a top-down traversal algorithm could be well applied for obtaining index items. Experimental results show that for rule sets up to one hundred thousand entries, the proposed design achieves 98. 2% power reduction with a TCAM storage overhead of 1. 3% on average. [ABSTRACT FROM AUTHOR]

Copyright of Shandong Medical Journal is the property of Shandong Medical Health Newspapers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Guangdong University of Technology is the property of Journal of Guangdong University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Engineering for Thermal Energy & Power / Reneng Dongli Gongcheng is the property of Journal of Engineering for Thermal Energy & Power and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Functional Materials / Gongneng Cailiao is the property of Chongqing Functional Materials Periodical Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The fractional order model of thermocouple is used to study the dynamic characteristics of thermocouple. In dynamic system temperature measurement, a delay of temperature response exists when the thermocouple is used to measure the transient temperature. The process of measurement is a time-delay process or genetic process. When thermocouple wires come into contact with an object being measured, the heat transfer occurs through the wires. The temperature on measuring junction results from the heat transfer between medium and measuring junction and the heat conduction between measuring junction and wires. A fractional order model of semi-infinite solid heat conduction is established based on the theory of fractional calculus. The proposed model describes the heat transfer between the measuring junction and the measured medium, including the heat transfer between the measuring junction and the wire. A fractional order transfer function is obtained by fractional Laplace transform. The transfer function describes the time lag of thermal inertia and the phase delay of thermal diffusion. An experimental system for measuring the surface temperature by thermocouple is built to collect the input and output data of thermocouple under the step perturbationed. Based on measured input and output data, the parameters and order of fractional order transfer function are estimated by using the new Luus-Jaakola algorithm. The experimental and calculated results show that the fitting results of variable fractional order transfer function are better than those of invariable fractional order transfer function. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Engineering for Thermal Energy & Power / Reneng Dongli Gongcheng is the property of Journal of Engineering for Thermal Energy & Power and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Guangdong University of Technology is the property of Journal of Guangdong University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Modern Medicine & Health is the property of Journal of Modern Medicine & Health and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pharmaceutial Care & Research is the property of Editorial Board of Pharmaceutial Care & Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Signal Processing is the property of Journal of Signal Processing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

OBJECTIVE: To probe into the procedures and significances of establishment of database of cases infected by Acinetobacter baumannii, so as to provide references for researches of epidemiological investigations, treatment options and prognostic analyses. METHODS: Data of Acinetobacter baumannii infected cases from hospital of Xinjiang production and construction corps above grade A class second (13 hospitals) were collected from 2015 to 2016, summarized and classified, WAMP (Windows + PHP + Apache + MySQL) platform was adopted to establish the database of cases infected by Acinetobacter baumannii on basis of requirements analysis, related data and information were then typed in. RESULTS: Established the “man-machine” friendship interface, the database system of Acinetobacter baumannii cases that mainly included four modifies of homepage, query, data analysis and system maintenance. CONCLUSIONS: This database has the features of wide application, professional, good expansibility and easy to generalize, with overall reflection on its functions and effects of inspection, diagnosis, treatment and prediction. Which benefits corps medical stafl to conduct epidemiological investigations, assessment on therapeutic effects, evaluation and prediction on infection rales, prognostic analyses, provide reliable basic data for corps medical staff and science researchers. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Evaluation & Analysis of Drug-Use in Hospitals of China is the property of Evaluation & Analysis of Drug-Use in Hospitals of China Editorial Board and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)